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Browsing by Author "Iwuoha, EI"

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Amplification of the discharge current density of lithium-ion batteries with spinel phase Li(PtAu)0.02Mn1.98O4 nano-materials

Author: Ross, N ; Iwuoha, EI ; Ikpo, CO ; Baker, P ; Njomo, N ; Mailu, SN ; Masikini, M ; Matinise, N ; Tsegaye, A ; Mayedwa, N ; Waryo, T ; Ozoemena, KI ; Williams, A Date: May 2014 In this study the synergistic and catalytic properties of a novel nano-composite cathode material of nominal composition Li(M)(subx)Mn(sub2-x)O(sub4) (M = Pt-Au; x # 0.2) has been explored. Li(PtAu)xMn(sub2-x)O4 nanomaterial for use in ... Read more
Electrokinetic and impedimetric dynamics of FeCo-nanoparticles on glassy carbon electrode

Author: Ikpo, CO ; Njomo, N ; Ozoemena, KI ; Waryo, T ; Olowu, RA ; Masikini, M ; Baleg, AA ; Jahed, N ; Baker, PGL ; Iwuoha, EI Date: Jan 2013 The electrochemical dynamics of a film of FeCo nanoparticles were studied on a glassy carbon electrode (GCE). The film was found to be electroactive in 1 M LiClO4 containing 1:1 v/v ethylene carbonate – dimethyl carbonate electrolyte system. ... Read more
Fabrication of hybrid solar cells using poly(2,5-dimethoxyaniline) hexagonal structures and zinc oxide nanorods

Author: Mavundla, SE ; Malgas, GF ; Motaung, DE ; Iwuoha, EI Date: Apr 2012 Flower-shaped zinc oxide (ZnO) structures have been synthesized in a microwave at 180 C for 20 minutes using zinc nitrate and KOH. Detailed structural and morphology observation showed that the micron-sized ZnO nano-pencils grow out of the ... Read more
Graphenated tantalum(IV) oxide and poly(4-styrene sulphonic acid)-doped polyaniline nanocomposite as cathode material in an electrochemical capacitor

Author: Njomo, N ; Waryo, T ; Masikini, M ; Ikpo, CO ; Mailu, S ; Tovide, O ; Ross, N ; Williams, A ; Matinise, N ; Sunday, CE ; Mayedwa, N ; Baker, PGL ; Ozoemena, KI ; Iwuoha, EI Date: May 2014 Nanostructured poly(4-styrene sulphonic acid) and tantalum (IV) oxide-doped polyaniline nanocomposite were synthesised and their electro-conductive properties were determined. The oxide was synthesized using a modified sol-gel method and then ... Read more
Metal oxides and noble metals application in organic solar cells

Author: Maake, Popoti J ; Bolokang, Amogelang S ; Arendse, CJ ; Vohra, V ; Iwuoha, EI ; Motaung, DE Date: Sep 2020 The integration of noble metals nanostructures can be an effective method to improve the performance of organic solar cells by scattering the incident light that reaches the active layer. The resulting elongated active optical trail span of ... Read more
Novel iron-cobalt derivatised lithium iron phosphate nanocomposite for lithium ion battery cathode

Author: Ikpo, CO ; Jafta, CJ ; Ozoemena, KI ; West, N ; Njomo, N ; Jahed, N ; Baker, PG ; Iwuoha, EI Date: Jan 2013 Described herein is the electrochemical study conducted on lithium ion battery cathode material consisting of composite of lithium iron phosphate (LiFePO(sub4), iron-cobalt derivatised carbon nanotubes (FeCo-CNT) and polyaniline (PA) nanomaterials ... Read more
Physicochemical and morphological properties of poly(aniline-co-pyrrole)

Author: Mavundla, SE ; Malgas, GF ; Motaung, DE ; Iwuoha, EI Date: 2010 Copolymers of aniline and pyrrole have been prepared by chemical oxidative- olymerization of aniline and pyrrole using ammonium per sulphate and ferric chloride as oxidants. The structural and morphological properties were studied by X-ray ... Read more
Synthesis of flower-like zinc oxide and polyaniline with worm-like morphology and their applications in hybrid solar cells

Author: Mavundla, SE ; Malgas, GF ; Motaung, DE ; Iwuoha, EI Date: May 2012 ZnO with a “flower-like” morphology was synthesized using a simple microwave assisted hydrothermal method and used as an acceptor material in hybrid solar cells. X-Ray diffraction and Raman Spectroscopy confirmed the formation of a highly ... Read more
Transition metal alloy-modulated lithium manganese oxide nanosystem for energy storage in lithium-ion battery cathodes

Author: West, N ; Ozoemena, KI ; Ikpo, CO ; Baker, PGL ; Iwuoha, EI Date: Jul 2013 This paper explores the synergistic and catalytic properties of a newly developed lithium ion battery (LIB) composite cathode of LiMn(sub2)O(Sub4) modified with bimetallic (Au–Fe) nanoparticle. Spinel phase LiMn(sub)2O(sub4) was doped with ... Read more

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Browsing by Author "Iwuoha, EI"

Browsing by Author "Iwuoha, EI"

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All of ResearchSpace

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